The invention provides an electric field distribution pressure-equalizing device for a voltage transformer. The electric field distribution pressure-equalizing device comprises a shielding ring device and a shielding plate device, wherein the shielding ring comprises an arc-shaped wire-coil main shielding ring and an arc-shaped wire-coil shielding auxiliary shielding ring. One end of the solenoid main shielding ring is combined with one end of the solenoid auxiliary shielding ring. The shielding plate device comprises an iron core side-yoking shielding plate and an iron core main-yoking shielding plate. The shielding device is connected with the iron core in a single-point ground joint mode. A part of the iron core of the voltage transformer is wrapped by a high-voltage solenoid. The outer layer of the high-voltage solenoid is wrapped by the shielding ring device.